19954808

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{397}}^1$

素因数の和:567

約数の個数: 32

約数和(自身を含む): 38494560

約数和(自身を除く): 18539752

約数列:

[1, 2, 4, 8, 61, 103, 122, 206, 244, 397, 412, 488, 794, 824, 1588, 3176, 6283, 12566, 24217, 25132, 40891, 48434, 50264, 81782, 96868, 163564, 193736, 327128, 2494351, 4988702, 9977404, 19954808]

約数ペア:

[(1, 19954808), (2, 9977404), (4, 4988702), (8, 2494351), (61, 327128), (103, 193736), (122, 163564), (206, 96868), (244, 81782), (397, 50264), (412, 48434), (488, 40891), (794, 25132), (824, 24217), (1588, 12566), (3176, 6283)]